The Android world is far from perfect, but there are a few constants you can count on. One of these is that the Nexus branded hardware that isn’t sold through a carrier will get new software firs. Today, Android 4.2.2 offers a few bits of polish to Google mobile OS, and as long as you have a Nexus 7, Nexus 10, or GSM Galaxy Nexus you’ll be getting a notification to download soon.

If you have anything other than a Nexus phone or tablet, or if you’re one of the poor souls on Verizon Wireless’ Galaxy Nexus, you’re still at least one full generation behind the latest version of Android. Google was clever in making both Android 4.1 and Android 4.2 branded as Jelly Bean, because it gives the company the ability to say that a growing percentage of Android marketshare is running Jelly Bean without having to actually deal with pesky OEMs.

There is no public change list so the full extent of 4.2.2’s updates are not known. Many user feel that Jelly Bean had a few performance issues, especially on the Nexus 7. Bluetooth interruption was also a known issue, with songs skipping for no reason when playing to a portable speaker or car stereo. The Nexus 4 wasn’t among affected devices, but everything else in the Nexus line up was due for a tune up.

Over the next few days, Google will slowly push the Android 4.2.2 update to all Nexus 7, Nexus 10, and GSM Galaxy Nexus devices. The update will prompt you to restart your phone, after which you should notice a a marked improvement in Bluetooth connection, battery life, and overall performance on the Nexus 7. If you aren’t interested in waiting, you can download the latest version of Android to your computer using the links at the bottom of the article and side-load the file to your device using the Android Debug Bridge. If you already have ADB installed, the process shouldn’t take more than a few minutes.

Some speculate that this update contains hooks for new features that will be announced by Google at Mobile World Congress, but until a full teardown of the ROM is done there’s no actual way of confirming that. The Android 4.2.2 update contained no official changelog, and the update popup on the devices today simply told users to check out the Android website for details on the update. Currently, that website still serves as a feature breakdown, and has no documentation regarding the Android 4.2.2 update.